MySQL: Error 1153 – Got a packet bigger than ‘max_allowed_packet’ bytes
If data sent to MySQL is larger than “max_allowed_packet” then the request fails. Increase the value of “max_allowed_packet“ to fix this.
MySQL: Pivot Table – Pivot Rows to Columns Dynamically
In this article, we will see how to implement a pivot table in MySQL. We will do that step by step, so that it becomes clear, what we are doing and why we are doing it.
MySQL: Clone/Duplicate Table (with or without data)
This article will show different ways to clone or duplicate a MySQL table. All the available methods are discussed. Choose the process which suits your need.
MySQL: Find and Delete Duplicate Rows (for single/multiple columns)
In this article, I will discuss 2 ways to get rid of duplicate rows from your MySQL database table. The first one will work for any MySQL version, but the second one will work for MySQL 8 or later version.
MySQL: CAST any Data Type as INTEGER
To CAST any data type to Integer in MySQL, you need to CAST it as SIGNED (for getting a signed integer) or UNSIGNED (for getting unsigned integer).
NodeJS: Server-Sent Events(SSE) using ExpressJS
Follow the steps below to implement Server-Sent Events (SSE) in NodeJS. We are using the ExpressJS framework for the implementations here, but the same approach will work for any NodeJS framework.
Design Patterns [classic/core patterns]
Design Patterns are solutions to common/general problems while designing software. In this article we are discussing what design patterns are, the type and use-cases.
MySQL: Check Database and Table Size
This process will work in all cases, whether you are accessing your database through the command line or using any GUI tool (like MySQL Workbench or HeidiSQL). Because the size-related information is already saved in a specific MySQL table. Check the table named “TABLES” from the database “information_schema”, you will find all the information related to the sizes of the tables.
Design Pattern: Factory Pattern
Factory pattern is one of the most popular and commonly used patterns. When we don’t know what is the type of object that is going to be generated then we use the Factory pattern to create objects based on some criteria.
Design Pattern: Singleton Pattern
Singleton pattern is used to ensure that only one instance of a class is created in any case, and whenever you want to get an instance of that class, then the same object instance is returned.